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Acta Cryst. (2005). E61, o2596-o2598  [ doi:10.1107/S1600536805022257 ]

2,9-Dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione (red phase)

T. Senju, N. Nishimura, T. Hoki and J. Mizuguchi

Online 16 July 2005


Key indicators

checkCIF/PLATON results

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Alert level A PLAT029_ALERT_3_A _diffrn_measured_fraction_theta_full Low ....... 0.90
Author Response: A two-dmensional detector (IP) was used in combination with Cu as radiation.

Alert level C REFLT03_ALERT_3_C Reflection count < 95% complete From the CIF: _diffrn_reflns_theta_max 68.06 From the CIF: _diffrn_reflns_theta_full 0.00 From the CIF: _reflns_number_total 1217 TEST2: Reflns within _diffrn_reflns_theta_max Count of symmetry unique reflns 1346 Completeness (_total/calc) 90.42% PLAT022_ALERT_3_C Ratio Unique / Expected Reflections too Low .... 0.90 PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ... 5 PLAT431_ALERT_2_C Short Inter HL..A Contact Cl1 .. Cl1 .. 3.28 Ang.
1 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 4 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 ALERT type 2 Indicator that the structure model may be wrong or deficient 4 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion

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